DR Power 22-Ton (July 2013 - Present) - Manual (Page 15)

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STEP 7: CONNECTING THE OPEN ENDS OF THE HYDRAULIC HOSES TO THEIR CORRESPONDING FITTINGS.
Note: There are three hydraulic hoses listed below, each of them has one end fixed on the fitting by the manufacturer, the other end
needs to be attached. For clear view of the hydraulic hoses, the hose protective springs are not shown in the illustration below.
1. Oil suction hose / Ø25 x 310 mm, labeled as ①, comes from the tank (Figure 9). Loosen the hose clamp / Ø30 on the
open end of this hose using a flat head screwdriver, then connect the hose to the fitting on the bottom of the pump, which
is labeled of a same ①. Tighten the hose clamp.
2. Pump / Valve connecting hose / Ø19 x 900mm, labeled as ②, comes from the bottom of the valve. Screw the open end of
this hose onto the fitting on top of the pump, which is labeled of a same② using a 27mm wrench (or 1-1/16" wrench or
adjustable wrench).
3. Oil return hose labeled as ③, comes from the top of the valve. Screw the open end of this hose onto the fitting on the
filter, which is labeled of a same ③ using a 27mm wrench (or 1-1/16" wrench or adjustable wrench).
Note: Check all hydraulic hoses at both ends for tightness. Tighten as needed.
(Figure 9)
Valve
Hose
Clamp- Ø30
Pump
Filter